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Publication numberUS6264864 B1
Publication typeGrant
Application numberUS 09/418,405
Publication dateJul 24, 2001
Filing dateOct 14, 1999
Priority dateOct 16, 1998
Fee statusLapsed
Also published asCA2346455A1, DE69911446D1, DE69911446T2, EP1121239A1, EP1121239B1, US6706228, US20010042938, WO2000023255A1, WO2000023255A9
Publication number09418405, 418405, US 6264864 B1, US 6264864B1, US-B1-6264864, US6264864 B1, US6264864B1
InventorsJohn H. Mackay
Original AssigneeExxon Chemical Patents Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Process for producing polyolefin microporous breathable film
US 6264864 B1
Polyolefin/filler breathable films may be produced by machine or transverse direction orientation using interdigitating grooved rollers. Biaxial orientation to similarly produce breathable films may be accomplished by the same method. By heating the rollers, the breathability of the film is increased without increasing the depth of engagement of the interdigitating rollers.
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What I claim is:
1. A process for adjusting the WVTR of a breathable filled film manufactured using interdigitating grooved rollers, said process comprising:
a) extruding a precursor film including:
(i) a polyolefin resin having at least 20% polypropylene by wt. % of said polyolefin resin, and
(ii) a filler in the range of from 20 to 70 wt. % of said precursor film:
b) heating at least one pair of interdigitating grooved rollers to a predetermined temperature in the range of from 110° F. to 140° F., said predetermined temperature of the rollers being determined by a desired WVTR for the breathable film;
c) passing said precursor film between said interdigitating grooved rollers to heat and stretch said precursor film to produce the breathable film, having a WVTR greater than 1000 g/m2/day at 38° C. and 90% relative humidity and having permanent elongation in a stretched direction.
2. A process for adjusting the WVTR of a breathable filled film manufactured using interdigitating grooved rollers, said process comprising:
a) extruding a precursor film from a polyolefin blend including;
(i) at least 33 wt. % polypropylene,
(ii) at least 2 wt. % low density polyethylene, and
(iii) at least 57 wt. % calcium carbonate filler
b) heating at least one pair of interdigitating grooved rollers to a predetermined temperature in the range of from 110° F. to 140° F., said predetermined temperature of the rollers being determined by a desired WVTR for the breathable film;
c) passing said precursor film between said interdigitating grooved rollers to heat and stretch said precursor film to produce the breathable film, having a WVTR greater than 1000 g/m2/day at 38° C. and 90% relative humidity and having permanent elongation in a stretched direction.

This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/104,452 filed Oct. 16, 1998 and U.S. Provisional Patent Application Ser. No. 60/104,985 filed Oct. 20, 1998.


1. Field

This invention relates generally to an improved polyolefin microporous breathable film and method of making same. More specifically, this invention is directed toward a process by which increased Water Vapor Transmission Rate (WVTR) and enhanced film appearance can be realized with substantially the same film formulation and orientation.

2. Background

Preparation of films having good WVTR from highly filled polymers, usually polyolefins, is well known in the art. In the past, a combination of polyolefin, usually a polyethylene, with a filler, usually CaCO3, is widely used as a film with good WVTR, often, but not necessarily, in combination with non-woven polymers for use in diapers, adult incontinence devices, feminine hygiene articles, surgical garments, housewrap composites, protective apparel, roofing materials and the like.

The use of interdigitating rolls to orient films or non-wovens is also well known in the art. In some cases this process is referred to as cold stretching. To increase the WVTR of films, while employing interdigitating technology, it has been necessary to increase the level of filler in the polyolefin/filler blend, or to increase the depth of interengagement of the orienting rollers—both of which have technical limits, and which may have a serious negative impact on important physical properties of the resulting film. The technical limits of depth of engagement of the interdigitating rolls and CaCO3 loading restrict film breathability level.

Also, it is desirable for many applications of breathable film, such as disposable diapers, adult incontinence products, and feminine hygiene devices, that some visual evidence of a difference between breathable and non-breathable films exist. It is thought that this product differentiation could be of benefit to the consumer, as well as the manufacturer of the disposable products.


We have discovered that applying heat to interdigitating rollers results in a substantial improvement in orientation effectiveness (WVTR increases), and imparts a third dimensionality to the film which differentiates it from other breathable films. In addition, a new control is provided for the adjustment of film breathability, i.e., rather than require a formulation change, or adjustment to the depth of activation of the interdigitating rollers, to control WVTR levels, roller temperature may be adjusted. As can be seen from the following examples, with all other factors constant, an increase in the temperature of the interdigitating rolls from 70° F. to 140° F., increases WVTR from 1900 gm/sqm/day to 4100 gm/sqm/day.


A better understanding of the Process for Producing Polyolefin Microporous Breathable Film may be obtained by reference to the following drawing figures together with the detailed description.

FIG. 1 shows the geometry of interdigitating rollers;

FIG. 2 shows a machine direction orientation roller;

FIG. 3 shows a transverse direction orientation roller; and

FIG. 4 shows a cross-section of a WVTR test cell.



This invention concerns polyolefin/filler based breathable films. While initial work was executed on a polypropylene based product, it will be shown that the disclosed process is effective for all polyolefin materials.

This invention further includes certain polyolefins, their conversion into fabricated articles such as films, articles made from such films, and applications in which such articles having high WVTR combined with good physical properties are desirable. The resulting films, and film composites, (including coextruded and laminated films) have combinations of properties rendering them superior and unique to films or film composites previously available. The films disclosed herein are particularly well suited for use in producing certain classes of high WVTR films, consumer and industrial articles using the films in combination with, for instance, polymeric woven or non-woven materials. Such consumer articles include, but are not limited to diapers, adult incontinence devices, feminine hygiene articles, medial and surgical gowns, medical drapes, industrial apparel, building products such as “house-wrap”, roofing components, and the like made using one or more of the films disclosed herein. Additionally, the films of the present invention may also be used in metallized films with a high WVTR, according to the disclosure of U.S. Pat. No. 5,055,338, which is to be incorporated herein by reference in its entirety.

Production of the Films

Films contemplated by certain embodiments of the present invention may be made utilizing a polyolefin, by film processes including blown molding, casting, and cast melt embossing. The preferred process is a cast melt embossed film process. In extrusion processes, the films of the present invention can be formed into a single layer film, or may be one layer or more of a multi-layer film or film composite. Alternatively, the polyolefin films described in this disclosure can be formed or utilized in the form of a resin blend where the blend components can function to modify the WVTR, the physical properties, the draw-down, the sealing, the cost, or other parameters. Both blend components and the parameters provided thereby will be well known to those of ordinary skill in the art. The breathable films of the present invention may also be included in laminated structures. As long as a film, multi-layer film, or laminated structure includes one or more polyolefin/filler film layers having the WVTR, or draw-down, and the like of the film, such film, multilayer film, or laminated structure will be understood to be contemplated as an embodiment of the present invention.

Polyolefin Precursor Film Component

The polyolefin precursor component can be any film forming polyolefin including polyethylene and polypropylene, ethylene polar comonomer polymers, ethylene α-olefin copolymers and combinations hereof.

Suitable Polyolefins and Relative Benefits
Polypropylene Impact Tear Softness Drawdown
Metallocene Homo- preferred preferred preferred most
polymers and preferred
Random Copolymer more more more more
PP preferred preferred preferred preferred
Impact Copolymer most most most preferred
polypropylene preferred preferred preferred
Homopolymer PP preferred preferred preferred preferred
Exxon LD 3003 preferred preferred preferred preferred

It will be understood that, in general, we contemplate that a large number of polyolefins will be useful in the techniques and applications described herein. Also included in the group of polyolefins that are contemplated as embodiments of this invention are metallocene catalyzed polyethylenes, both linear low density and very low density (0.88 to 0.935 g/cm3), high density polyethylene (0.935-0.970 g/cm3), Ziegler-Natta catalyzed linear low density polyethylene, conventional high pressure low density polyethylene (LDPE), and combinations thereof. Various elastomers or other soft polymers may be blended with the majority polyolefin component, these include styrene-isoprene-styrene (styrenic block co-polymer), styrene-butadiene-styrene (styrenic block co-polymer), styrene-ethylene/butylene-styrene (styrenic block co-ploymer), ethylene-propylene (rubber), Ethylene-propylene-diene-modified (rubber), Ethylene-vinly-acetate, Ethylene-methacrylate, Ethylene-ethyl-acrylate, Ethylene-butyl-acrylate.


Fillers useful in this invention may be any inorganic or organic material having a low affinity for and a significantly lower elasticity than the film forming polyolefin component. Preferably a filler should be a rigid material having a non-smooth hydrophobic surface, or a material which is treated to render its surface hydrophobic. The preferred mean average particle size of the filler is between about 0.5-5.0 microns for films generally having a thickness of between about 1 to about 6 mils prior to stretching.

Examples of the inorganic fillers include calcium carbonate, talc, clay, kaolin, silica, diatomaceous earth, magnesium carbonate, barium carbonate, magnesium, sulfate, barium sulfate, calcium sulfate, aluminum hydroxide, zinc oxide, magnesium hydroxide, calcium oxide, magnesium oxide, titanium oxide, alumina, mica, glass powder, zeolite, silica clay, etc. Calcium carbonate (CaCO3) is particularly preferred for its low cost, its whiteness, its inertness, and its availability. The selected inorganic filler such as calcium carbonate is preferably surface treated to be hydrophobic so that the filler can repel water to reduce agglomeration. Also, the surface treatment of the filler should improve binding of the filler to the polyolefin precursor while allowing the filler to be pulled away from the precursor film under stress. A preferred coating for the filler is calcium stearate which is FDA compliant and readily available.

Organic fillers such as wood powder, and other cellulose type powders may be used. Polymer powders such as TeflonŽ powder and KeviarŽ powder can also be used.

The amount of filler added to the polyolefin precursor depends on the desired properties of the film including dart impact strength, tear strength, WVTR, and stretchability. However, it is believed that a film with good WVTR generally cannot be produced as is taught herein with an amount of filler less than about twenty percent (20%) by weight of the polyolefin/filler blend.

The minimum amount of filler (about twenty percent by weight) is needed to assure the interconnection within the polyolefin precursor film of voids created at the situs of the filler—particularly by the stretching operation to be subsequently performed. Further, it is believed that useful films could not be made with an amount of the filler in excess of about seventy percent (70%) by weight of the polyolefin/filler composition. Higher amounts of filler may cause difficulty in compounding and significant losses in strength of the final breathable film. Preferred ranges include about 30% to about 70% by weight, more preferably from about 40% to about 60% by weight.

While a broad range of fillers has been described at a broad range of inclusion parameters based on weight percentages, still other embodiments of the present invention are contemplated. For instance, fillers with much higher or much lower specific gravity may be included with the polyolefin precursor at amounts outside the weight ranges disclosed. Such combinations will be understood to be contemplated as embodiments of our invention as long as the final film, after orientation, has WVTR, or draw down similar to that described herein.

Film Physical Property Modification

It was found that the addition of small amounts of low density polyethylene to the polyolefin/filler blend allowed film extrusion at higher throughput levels with some majority polymers. Low density polyethylene with a melt flow index of about 0.9 to 25.0 grams per ten minutes (12.0 grams per ten minutes being preferred), and a density of about 0.900 to 0.930 may be used.

Further improvements in film impact and tear strength are possible by the addition of plastomers, elastomers, styrenic block co-polymers (SIS, SBS, SEBS), or rubbers. Material grades included are:

Property Improvement Materials
Melt Flow
Supplier Grade Index Density
Exxon Chemical Exact 3139 7.5 .900
Exxon Chemical Exact 4044 16.5 .895
Exxon Chemical Exact 9095 2.2 .893
Exxon Chemical Exact 3131 3.5 .900
Exxon Chemical Paxon SLX 9106 2.0 .900
Exxon Chemical Paxon SLX 9101 3.5 .900
Dexco Vector 4211 13
Dexco Vector 4411 40
Exxon Vistalon 3708
Exxon Vistalon 3030
Shell Kraton G1657 8 SEBS
Union Carbide UC 9042 5.1 .900
Union Carbide UC 1085 0.8 .884

Stretching or Orienting

Final preparation of a breathable film is achieved by stretching the filled polyolefin precursor film to form interconnected voids. Stretching or “orientation” is achieved by incrementally orienting the polyolefin precursor in the machine direction, transverse direction, or both. Films can be incrementally oriented by a number of mechanical techniques, however, the preferred technique is to stretch the film through pairs of interdigitating rollers, as shown in FIG. 1. Therein it may be seen that the film is contracted by the apex 18 of a plurality of teeth spaced a distance or pitch (W) apart. The apex 18 of each tooth extends into the open space 20 between the teeth on an opposing roller. The amount of interengagement depends both on the tooth depth (d) and the relative position of the rollers.

Machine direction orientation is accomplished by stretching the film through a gear like pair of rollers 16 as shown in FIG. 2. Transverse direction orientation is accomplished by stretching the film through a pair of disk-like rollers as shown in FIG. 3.

The preferred embodiment employs rollers with a tooth pitch, W=0.080″, however a pitch of about 0.040″ to 0.500″ is also acceptable. The tooth depth (d), is preferably 0.100″, however, a tooth depth of about 0.030″ to 0.500″ is also acceptable. For the transverse direction orientation rollers, as shown in FIG. 3, the depth may be up to about 1.000″ as mechanical interference is less of an issue with the transverse direction rollers. The preferred embodiment employs interdigitating rollers that can be temperature controlled from about 50° F. to about 210° F. More preferred is a temperature range of from about 70° F. to about 190° F. Even more preferred is a temperature range from about 85° F. to about 180° F. And most preferred is a temperature range from about 95° F. to about 160° F. Roll temperature may be maintained through the internal flow of a heated or cooled liquid, an electrical system, an external source of cooling/heating, combinations thereof, and other temperature control and maintenance methods which will be apparent to those of ordinary skill in the art. The preferred embodiment is internal flow of a heated or cooled liquid through the rollers.

The depth of interengagement of the roller teeth determines the amount of orientation imparted on the film. A balance must be drawn between the depth of engagement of the roller teeth and the level of filler in the film, as many physical properties of the film are affected as depicted in the following table.

Relationships Between Process and Formulation Factors

Relationships between process and formulation factors
Dart Basis CD
Adjust WVTR Impact Weight Tensile MD Tear
CaCO3 Increase Increase Increase de-
MD Increase Increase de- de- de-
Orientation crease crease crease
TD Increase Increase de- de- De-
Orientation crease crease crease
Roll Increase In- de-
Temperature creased crease

Properties of Films Produced


In an embodiment of the present invention, certain films and articles made therefrom have higher WVTR than previously thought possible. The WVTR of such films should be above about 100 g/m2/24 hr@37.8° C., 100% RH, preferably above about 1000 g/m2/24 hr@37.8° C., 100% RH, more preferably above about 2000 g/m2/24 hr@37.8° C., 100% RH. Some applications benefit from film with a WVTR at or above about 10,000 g/m2/24 hr@37.8° C., 100% RH.

Test Methods

Water Vapor Transmission Rate (WVTR)

Both a Mocon W1, and a Mocon W600 instrument are used to measure water evaporated from a sealed wet cell at 37.8° C. through the test film and into a stream of dry air or nitrogen. It is assumed that the relative humidity on the wet side of the film is near 100%, and the dry side is near 0%. The amount of water vapor in the air stream is precisely measured by a pulse modulated infra red (PMIR) cell. Following appropriate purging of residual air, and after reaching a steady state of water vapor transmission rate, a reading is taken. WVTR of the test films are reported at Grams of Water/Meter2/Day@37° C. The output of the unit has been calibrated to the results obtained with a film of known WVTR. The testing protocols are based on ASTM 1249-90 and the use of a reference film, such as Celgard 2400, which has a WVTR of 8700 g/m2/day@37.8° C. The diagram depicted in FIG. 4 illustrates the basic operation of the Mocon units.

Mocon W1

As illustrated generally by reference to FIG. 4, the Mocon W1 has a single test cell and an analog chart recorder. Air is pumped through a desiccant dryer, then through the test cell, and then past the PMIR sensor. A five-minute purge of residual air is followed by a six-minute test cycle with controlled air flow. The result is a steady state value for WVTR. The purge and test cycles are controlled manually. The unit is calibrated to a film with a known WVTR every twelve hours. Calibration results are control charted and adjustments are made to the instrument calibration accordingly.

Mocon W600

The Mocon W600 has six measurement cells with PMIR data fed into a computer. Nitrogen is fed through a desiccant dryer, then through the active test cell, then past the PMIR sensor. In addition to data compilation, a computer controls test cycle sequencing. All cells are purged simultaneously for an eight-minute period. This is followed by an eight-minute test cycle for each of the six measurement cells. Total testing time is fifty-six minutes. Two of the six measurement cells always measure reference films with a known WVTR.

EXAMPLES Example 1 Experimental Grade 400-6-1

A blend of 57% ECC FilmLink 400 CaCO3 was combined with 33% Exxon PD 7623 Impact Copolymer, 2% Exxon LD-200.48, and 8% Exxon Exact 3131 oriented in interdigitating rolls of 0.80″ pitch. The MD depth of engagement was 0.020″, and the TD depth of engagement was 0.040″. The temperature of the interdigitating rolls was 140° F.

Example 2 Experimental Grade 400-6-2

A blend of 57% ECC FilmLink 400 CaCO3 was combined with 33% Exxon PD 7623 Impact Copolymer, 2% Exxon LD-200.48, and 8″ Exxon Exact 3131 oriented in interdigitating rolls of 0.080″ pitch. The MD length of engagement was 0.020″, and the TD depth of engagement was 0.040″. The temperature of the interdigitating rolls was 110° F.

Example 3 Experimental grade 400-6-3

A blend of 57% ECC FilmLink 400 CaCO3 was combined with 33% Exxon PD 7623 Impact Copolymer, 2% Exxon LD-200.48, and 8% Exxon Exact 3131 oriented in interdigitating rolls of 0.080″ pitch. The MD depth of engagement was 0.020″, and the TD depth of engagement was 0.040″. The temperature of the interdigitating rolls was 70° F.

As can be seen from the following table, the WVTR rise from a roll temperature of 70° F. (considered ambient temperature) to 110° F., and then 140° F. is dramatic, unexpected and surprising.

Table of Example Film Properties
Example 1 Example 2 Example 3
Grade Number 400-6-1 400-6-2 400-6-3
Roll Temperature (° F.) 140 110  70
Basis Weight (gm/sqm)  43  40  39
WVTR (gm/sqm/day) 4100  3000  1900 
Dart Impact Strength (gm) 240 300 300
MD Ultimate (gm/in) 1585  1532  1453 
MD Elongation (%) 408 431 442
TD @ 5% (gm/in) 457 389 388
TD Ultimate (gm/in) 785 1166  1049 
TD Elongation (%) 351 358 357
MD Elmendorf Tear Strength (gm) 166 208 205

A linear regression analysis reveals that with the above fixed formulation, depth of activation water vapor transmission rate is predicted by the following equation:

WVTR=−329.73+31.216*Roller Temperature (° F.)

Changes and modifications in the specifically described embodiments can be carried out without departing from the scope of the invention which is intended to be limited only by the scope of the appended claims.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2896626Jun 17, 1958Jul 28, 1959Kimberly Clark CoDisposable absorbent pad
US3233029Jun 8, 1962Feb 1, 1966Phillips Petroleum CoMethod of cold-stretching orientable sheet material
US3299174Apr 25, 1963Jan 17, 1967Shell Oil CoCompositions comprising mono-olefin polymers and hydrogenated block copolymers
US3378512Sep 28, 1965Apr 16, 1968Goodrich Co B FTackifying cements for epm and epdm rubbers
US3407253May 3, 1966Oct 22, 1968Toyo BosekiOriented porous polyolefin-elastomer blend sheets and process of making same
US3424649Sep 24, 1965Jan 28, 1969Shell Oil CoDiene-monovinylarene block copolymerpolyolefin laminates
US3426754Sep 14, 1966Feb 11, 1969Celanese CorpBreathable medical dressing
US3562356Nov 19, 1968Feb 9, 1971Shell Oil CoBlock copolymer blends with certain ethylene-unsaturated ester copolymers
US3642967Jun 27, 1969Feb 15, 1972Cellu Prod CoMethod of producing net-like foamed thermoplastic material
US3654929Nov 9, 1967Apr 11, 1972Svenska Cellulosa AbBody-fluid absorption article
US3678134Mar 8, 1971Jul 18, 1972Phillips Petroleum CoBlend of ethylene-butene copolymer with butadiene-styrene radial block copolymer
US3683917Mar 24, 1970Aug 15, 1972John M ComerfordAbsorbent product comprising a fluid impervious barrier of a repellent tissue and a hydrocolloid
US3738904Jun 28, 1971Jun 12, 1973Du PontFilled biaxially oriented polymeric film
US3832267Sep 19, 1972Aug 27, 1974Hercules IncEmbossed film
US3837773Mar 27, 1969Sep 24, 1974Ethyl CorpExtruded plastic film method and apparatus for the manufacture thereof
US3840418Mar 3, 1972Oct 8, 1974R SabeeMethod of manufacture of a sanitary article and ply having selectively thickened areas
US3844865Jun 6, 1972Oct 29, 1974Minnesota Mining & MfgMethod of making stretch-oriented porous films
US3870593Apr 29, 1974Mar 11, 1975Minnesota Mining & MfgStretch-oriented porous films and preparation and use thereof
US3894827Mar 28, 1973Jul 15, 1975Ethyl CorpMethod and apparatus for embossing plastic film
US3903234Sep 7, 1973Sep 2, 1975Du PontProcess for preparing filled, biaxially oriented, polymeric film
US3927144Mar 1, 1973Dec 16, 1975Bridgestone Tire Co LtdElastomer composition
US3941859Aug 2, 1974Mar 2, 1976The B. F. Goodrich CompanyThermoplastic polymer blends of EPDM polymer, polyethylene and ethylene-vinyl acetate copolymer
US3969562Dec 24, 1974Jul 13, 1976Matsushita Electric Industrial Co., Ltd.Porous polymer film
US4076698Jan 4, 1957Feb 28, 1978E. I. Du Pont De Nemours And CompanyHydrocarbon interpolymer compositions
US4091164Nov 5, 1976May 23, 1978Presto Products IncPolymer modified hydrophilic inorganic fillers for thermoplastic polymeric materials
US4116892Sep 17, 1975Sep 26, 1978Biax-Fiberfilm CorporationProcess for stretching incremental portions of an orientable thermoplastic substrate and product thereof
US4116914Feb 14, 1977Sep 26, 1978Monsanto CompanyElastoplastic compositions of ethylene-vinyl acetate rubber and polyolefin resin
US4131654Nov 28, 1977Dec 26, 1978The B. F. Goodrich CompanyThermoplastic polymer blends comprising EPDM, E/EA copolymer and optionally P.E.
US4132698Feb 22, 1977Jan 2, 1979Exxon Research & Engineering Co.Elastomeric thermoplastics
US4134951Feb 23, 1977Jan 16, 1979Smith & Nephew Polyfabrik LimitedProduction of filaments
US4135023Mar 24, 1977Jan 16, 1979Smith & Nephew Plastics Ltd.Embossed film product and adhesive coated strip formed therefrom
US4144008Feb 9, 1977Mar 13, 1979Biax-Fiberfilm CorporationApparatus for stretching a tubularly-formed sheet of thermoplastic material
US4153664Jul 30, 1976May 8, 1979Sabee Reinhardt NProcess for pattern drawing of webs
US4153751Mar 22, 1977May 8, 1979Biax-Fiberfilm CorporationProcess for stretching an impregnated film of material and the microporous product produced thereby
US4171411Jun 22, 1978Oct 16, 1979Tuxis CorporationInsulative and cushioning interliner for garments and the like
US4173612Nov 3, 1977Nov 6, 1979Johnson & JohnsonExtrusion process for thermoplastic rubber film
US4205021Jan 18, 1978May 27, 1980Mitsui Petrochemical Industries, Ltd.Ethylene copolymers
US4210709Aug 1, 1978Jul 1, 1980Asahi Kasei Kogyo Kabushiki KaishaMicroporous film battery separator
US4212787May 26, 1978Jul 15, 1980Mitsui Petrochemical Industries Ltd.Thermoplastic elastomer composition, blends of the composition with olefin plastic, and foamed products of the composition and the blends
US4220579Apr 17, 1978Sep 2, 1980Uniroyal, Inc.Thermoplastic elastomeric blend of monoolefin copolymer rubber, amorphous polypropylene resin and crystalline polyolefin resin
US4220879Jan 9, 1978Sep 2, 1980Sony CorporationBrushless DC motor
US4223059Apr 27, 1978Sep 16, 1980Biax Fiberfilm CorporationProcess and product thereof for stretching a non-woven web of an orientable polymeric fiber
US4243576Apr 2, 1979Jan 6, 1981National Distillers And Chemical Corp.Blends of ethylene-vinyl acetate copolymer rubbers with elastomers
US4251585May 1, 1978Feb 17, 1981Biax Fiberfilm CorporationProduct and process for stretching a tubularly formed sheet of orientable thermoplastic material
US4253461Oct 11, 1979Mar 3, 1981The Procter & Gamble CompanyAbsorbent brief
US4277578Oct 6, 1978Jul 7, 1981Asahi-Dow LimitedComposition for drawn film, cold drawn film made of said composition and process for manufacture of said film
US4285100Jan 11, 1980Aug 25, 1981Biax Fiberfilm CorporationApparatus for stretching a non-woven web or an orientable polymeric material
US4289832Oct 26, 1978Sep 15, 1981Biax Fiberfilm Corp.Chemically-impregnated microporous films
US4298647Jul 16, 1979Nov 3, 1981Clopay CorporationCross-tearable decorative sheet material
US4303571Jan 17, 1980Dec 1, 1981Exxon Research & Engineering Co.Film-forming thermoplastic elastomeric polymer compositions
US4303712Apr 6, 1979Dec 1, 1981Woodroof E AubreyFabric silicone elastomer composite
US4303714Oct 9, 1979Dec 1, 1981P.L.G. Research LimitedPlastics material mesh structure
US4318408Oct 29, 1979Mar 9, 1982PermacelAbsorbent products
US4319950Mar 31, 1980Mar 16, 1982Manville Service CorporationMandrel for making a coupling for rigid pressure pipe
US4329309Aug 19, 1980May 11, 1982Johnson & JohnsonProducing reticulated thermoplastic rubber products
US4331622Jan 14, 1980May 25, 1982Asahi Kasei Kogyo Kabushiki KaishaMethod for manufacturing a microporous film having low electrical resistance and high durability
US4335193Feb 28, 1979Jun 15, 1982Asahi Kasei Kogyo Kabushiki KaishaMicroporous film, particularly battery separator, and method of making
US4344999Apr 22, 1980Aug 17, 1982W. L. Gore & Associates, Inc.Breathable laminate
US4350655Jun 25, 1980Sep 21, 1982Biax FiberfilmProcess for producing highly porous thermoplastic films
US4351784Dec 15, 1980Sep 28, 1982Ethyl CorporationCorona treatment of perforated film
US4352355May 5, 1980Oct 5, 1982Johnson & Johnson Baby Products CompanyDiaper with contoured panel and contoured elastic means
US4353945Aug 11, 1980Oct 12, 1982Johnson & JohnsonFlocked, foam-coated, water vapor permeable, bacterial barrier
US4357439Aug 21, 1981Nov 2, 1982Chemische Werke Huls AktiengesellschaftShelf-stable ethylene-α-olefin (diene) elastomer powders comprising a release agent and a process for the production thereof
US4368565Mar 28, 1978Jan 18, 1983Biax-Fiberfilm CorporationGrooved roller assembly for laterally stretching film
US4378067Feb 26, 1981Mar 29, 1983The Goodyear Tire & Rubber CompanyPackaged reclaim rubber and compounded rubber prepared therefrom
US4380564Aug 5, 1981Apr 19, 1983Clopay CorporationCross-tearable decorative sheet material
US4402688Oct 27, 1981Sep 6, 1983Colgate-PalmoliveDisposable diaper with contoured elastic
US4418112Sep 9, 1981Nov 29, 1983Oji Yuka Goseishi Kabushiki KaishaComposite film and utilization thereof
US4425127Oct 14, 1981Jan 10, 1984Uni-Charm CorporationDisposable diapers
US4425129Dec 7, 1981Jan 10, 1984Colgate-Palmolive CompanyDiaper with cushioned elastic leg hold edges
US4427737Apr 23, 1981Jan 24, 1984E. R. Squibb & Sons, Inc.Microporous adhesive tape
US4435141Apr 7, 1982Mar 6, 1984Polyloom Corporation Of AmericaMulticomponent continuous film die
US4436520Dec 21, 1981Mar 13, 1984Exxon Research & Engineering Co.Low gloss films of enhanced adhesion
US4438167Nov 6, 1980Mar 20, 1984Biax Fiberfilm CorporationNovel porous fabric
US4440911Mar 18, 1982Apr 3, 1984Toa Nenryo Kogyo Kabushiki KaishaModified polyethylene and laminate thereof
US4449977Dec 11, 1981May 22, 1984Johnson & JohnsonAbsorbent products, processes and compositions
US4450026Jun 23, 1982May 22, 1984Johnson & Johnson Baby Products CompanyMethod of forming a conformable garment with "killed" elastic portions
US4460646Mar 18, 1982Jul 17, 1984Toa Nenryo Kogyo Kabushiki KaishaAdhesive resin composition and laminate thereof
US4465729Apr 5, 1983Aug 14, 1984Clopay CorporationCross-tearable plastic films
US4472328Mar 2, 1982Sep 18, 1984Mitsubishi Chemical Industries, Ltd.Process for producing porous film or sheet
US4476180Feb 1, 1983Oct 9, 1984The Procter & Gamble CompanyNonblocking elastomeric polymer blends of ABA block copolymer and ethylene-vinyl acetate copolymer
US4479989Dec 2, 1982Oct 30, 1984Cutter Laboratories, Inc.Flexible container material
US4480061Dec 28, 1982Oct 30, 1984E. I. Du Pont De Nemours And CompanyWood-like articles made from cellulosic filler loaded ethylene interpolymers
US4485133May 11, 1982Nov 27, 1984Mitsubishi Gas Chemical Company, Inc.Oxygen absorbent packaging
US4517714Jul 23, 1982May 21, 1985The Procter & Gamble CompanyNonwoven fabric barrier layer
US4525531Apr 26, 1983Jun 25, 1985Raychem CorporationPolymeric compositions suitable for use in the medical field and containing a polyolefin, a polysiloxane and an elastomer
US4527989Jan 17, 1983Jul 9, 1985Colgate-Palmolive CompanyElasticized disposable diaper
US4534769Jun 15, 1983Aug 13, 1985Boussac Saint Freres B.S.F.Diaper
US4535020Jan 9, 1984Aug 13, 1985Ethyl CorporationPerforated film
US4585447Apr 15, 1985Apr 29, 1986Colgate-Palmolive CompanyDisposable diaper with intersecting stressed crotch and waist seals
US4585604Jun 15, 1984Apr 29, 1986Mitsubishi Petrochemical Co., Ltd.Process for preparing an air-permeable film
US4590020Mar 22, 1984May 20, 1986Toa Nenryo Kogyo Kabushiki KaishaMethod of producing oriented polyethylene film
US4590202Jan 19, 1984May 20, 1986Merck & Co., Inc.N-(2-imidazolidinylidene)-5H-dibenzo[a,d]cyclohepten-5-amine compounds and α2 -adrenergic antagonistic uses thereof
US4626252Jul 29, 1985Dec 2, 1986Kao CorporationDisposable diaper
US4636340Dec 18, 1984Jan 13, 1987Toa Nenryo Kogyo Kabushiki KaishaMethod of producing crosslinked polyethylene stretched film
US4639487Jul 11, 1984Jan 27, 1987Exxon Research & Engineering Co.Heat shrinkable thermoplastic olefin composition
US4639949Jan 10, 1985Feb 3, 1987Kimberly-Clark CorporationElastic form-fitting closure constructions for disposable garments
US4640859Sep 23, 1985Feb 3, 1987Minnesota Mining And Manufacturing CompanyInelastic, heat-elasticizable sheet material for diapers
US4657539Apr 26, 1985Apr 14, 1987The Procter & Gamble CompanyWaste containment garment having elasticized barrier wall leg flaps
US4663220Jul 30, 1985May 5, 1987Kimberly-Clark CorporationPolyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers
US4673619Aug 15, 1986Jun 16, 1987Toa Nenryo Kabushiki KaishaPolyethylene stretched film
US4681580Mar 29, 1985Jul 21, 1987The Procter & Gamble CompanyDisposable diapers with unitary waistshield and elastically expansible waistbands
US4681781Feb 19, 1986Jul 21, 1987C-I-L Inc.Shipping bag
US4684578Oct 10, 1986Aug 4, 1987Toa Nenryo Kogyo Kabushiki KaishaModified elastomer and laminate thereof
US4704238Nov 15, 1985Nov 3, 1987Mitsubishi Petrochemical Co., Ltd.Process for the production of air-permeable films
US4705812Dec 14, 1984Nov 10, 1987Mitsui Toatsu Chemicals, Inc.Process for producing porous films involving a stretching step and the resultant product
US4713068Oct 31, 1986Dec 15, 1987Kimberly-Clark CorporationBreathable clothlike barrier having controlled structure defensive composite
US4713069Oct 31, 1986Dec 15, 1987Kimberly-Clark CorporationBaffle having zoned water vapor permeability
US4714735May 8, 1985Dec 22, 1987Exxon Chemical Patents Inc.Oriented elastomeric film and method of manufacture
US4716197Apr 21, 1986Dec 29, 1987The Dow Chemical CompanyPolyethylene/EPDM-graft polystyrene blends
US4719144Feb 18, 1986Jan 12, 1988Crown Textile CompanyFusible interlining fabric using high wet modulus rayon
US4721592Jan 23, 1987Jan 26, 1988E. I. Du Pont De Nemours And CompanyFilm embossing process
US4725481Feb 24, 1987Feb 16, 1988E. I. Du Pont De Nemours And CompanyVapor-permeable, waterproof bicomponent structure
US4734324Mar 27, 1987Mar 29, 1988Hercules IncorporatedHeat sealable microporous polypropylene films
US4740258Apr 30, 1985Apr 26, 1988Dynamit Nobel AgProcess for embossing flexible sheets of foam material
US4758297Jun 3, 1986Jul 19, 1988Fmc CorporationHot pin laminated fabric
US4775375Dec 11, 1986Oct 4, 1988Aledo Eduardo C ADisposable diaper with anatomical configuration
US4777073Mar 11, 1987Oct 11, 1988Exxon Chemical Patents Inc.Breathable films prepared from melt embossed polyolefin/filler precursor films
US4777703Jul 14, 1986Oct 18, 1988Ancra CorporationQuick release strap buckle
US4791144Jun 12, 1987Dec 13, 1988Tokuyama Soda Kabushiki KaishaMicroporous film and process for production thereof
US4793956Dec 24, 1986Dec 27, 1988Nippon Petrochemicals Company, LimitedProcess for preparing porous film or sheet
US4806300May 29, 1987Feb 21, 1989Richard R. WaltonMethod for softening a nonwoven web
US4808252Aug 6, 1987Feb 28, 1989The Procter & Gamble CompanyShaped disposable diapers with elastically contractible waistbands
US4814124Jan 20, 1987Mar 21, 1989Mitsui Toatsu Chemicals Inc.Preparation of gas permeable porous film
US4820590Nov 23, 1987Apr 11, 1989Exxon Chemical Patents Inc.Oriented elastomeric film and method of manufacture
US4824718Dec 4, 1987Apr 25, 1989Minnesota Mining And Manufacturing CompanyPorous film
US4833172Sep 15, 1988May 23, 1989Ppg Industries, Inc.Stretched microporous material
US4848564Jun 7, 1988Jul 18, 1989Exxon Chemical Patents Inc.Synthetic rubber bale wrap
US4877679Dec 19, 1988Oct 31, 1989Ppg Industries, Inc.Multilayer article of microporous and porous materials
US4878974Feb 6, 1989Nov 7, 1989Tonen Sekiyukagaku Kabushiki KaishaMethod of producing a gas-permeable, waterproof composite sheet
US4879078Mar 14, 1988Nov 7, 1989Hercules IncorporatedProcess for producing uniaxial polyolefin/filler films for controlled atmosphere packaging
US4902553Nov 18, 1988Feb 20, 1990Minnesota Mining And Manufacturing CompanyDisposable products
US4921653Nov 2, 1988May 1, 1990Mitsui Toatsu Chemicals, Inc.Method of forming a porous polyolefin film
US4921749May 29, 1987May 1, 1990Exxon Chemical Patents Inc.Sealable films
US4929303Sep 25, 1987May 29, 1990Exxon Chemical Patents Inc.Composite breathable housewrap films
US4957943Oct 14, 1988Sep 18, 1990Minnesota Mining And Manufacturing CompanyParticle-filled microporous materials
US4977014Aug 22, 1989Dec 11, 1990Shell Oil CompanyThermoplastic block copolymer films
US4978570Jun 6, 1988Dec 18, 1990Exxon Chemical Patents Inc.Garment with foam cushion elastic closure
US5008204Feb 2, 1988Apr 16, 1991Exxon Chemical Patents Inc.Method for determining the compositional distribution of a crystalline copolymer
US5008296Mar 29, 1990Apr 16, 1991Hercules IncorporatedBreathable microporous film
US5026798Sep 13, 1990Jun 25, 1991Exxon Chemical Patents Inc.Process for producing crystalline poly-α-olefins with a monocyclopentadienyl transition metal catalyst system
US5032450Jan 31, 1990Jul 16, 1991Ppg Industries, Inc.Microporous material having a coating of hydrophobic polymer
US5034078Jun 7, 1990Jul 23, 1991Exxon Chemical Patents Inc.Method of making an elastomeric film
US5035338Feb 23, 1990Jul 30, 1991Amsted Industries IncorporatedSlackless railcar connections with extractable wedge
US5055338Sep 29, 1988Oct 8, 1991Exxon Chemical Patents Inc.Metallized breathable films prepared from melt embossed polyolefin/filler precursor films
US5066526Mar 14, 1990Nov 19, 1991Exxon Chemical Patents Inc.Thermoplastic films for use in stretch/cling applications
US5068138Jul 23, 1990Nov 26, 1991Shell Oil CompanyElastomeric film
US5145747Feb 12, 1990Sep 8, 1992Exxon Chemical Patents Inc.Film and polymer composition for film
US5167652Jan 27, 1989Dec 1, 1992W. R. Grace & Co.-Conn.Moisture sensitive film
US5169712Aug 23, 1991Dec 8, 1992Amoco CorporationPorous film composites
US5174231Dec 17, 1990Dec 29, 1992American Colloid CompanyWater-barrier of water-swellable clay sandwiched between interconnected layers of flexible fabric needled together using a lubricant
US5182069Jan 4, 1991Jan 26, 1993Exxon Chemical Patents Inc.Process for producing micropattern-embossed oriented elastomer films
US5198401Jul 30, 1991Mar 30, 1993Exxon Chemical Patents Inc.Ionic metallocene catalyst compositions
US5206075Dec 19, 1991Apr 27, 1993Exxon Chemical Patents Inc.Sealable polyolefin films containing very low density ethylene copolymers
US5241031Feb 19, 1992Aug 31, 1993Exxon Chemical Patents Inc.Elastic articles having improved unload power and a process for their production
US5272236Oct 15, 1991Dec 21, 1993The Dow Chemical CompanyElastic substantially linear olefin polymers
US5278272Sep 2, 1992Jan 11, 1994The Dow Chemical CompanyElastic substantialy linear olefin polymers
US5296184Oct 28, 1992Mar 22, 1994Clopay Plastic Products Company, Inc.Method of making an ultra soft cloth-like embossed plastic film having post-embossed stretched areas
US5317035Dec 18, 1992May 31, 1994Amoco CorporationOriented polymeric microporous films
US5322728Nov 24, 1992Jun 21, 1994Exxon Chemical Patents, Inc.Fibers of polyolefin polymers
US5358792Apr 23, 1993Oct 25, 1994Exxon Chemical Patents Inc.Heat sealable blend of very low density polyethylene or plastomer with polypropylene based polymers and heat sealable film and articles made thereof
US5364695Jul 2, 1990Nov 15, 1994Gurewitz Richard MThermoplastic film from polyethylene having improved surface adhesion and method of making thereof
US5376439Mar 29, 1994Dec 27, 1994Exxon Chemical Patents Inc.Soft films having enhanced physical properties
US5382461Mar 12, 1993Jan 17, 1995Clopay Plastic Products Company, Inc.Extrusion laminate of incrementally stretched nonwoven fibrous web and thermoplastic film and method
US5382630Feb 4, 1993Jan 17, 1995Exxon Chemical Patents Inc.Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distribution
US5385769Aug 7, 1992Jan 31, 1995Exxon Chemical Patents Inc.Micropattern-embossed oriented elastomer films
US5399396Aug 26, 1993Mar 21, 1995Exxon Chemical Patents Inc.Multi-layer film
US5409761Jul 2, 1993Apr 25, 1995Kappler Safety GroupBreathable non-woven composite barrier fabric and fabrication process
US5415905Sep 29, 1993May 16, 1995Exxon Chemical Patents Inc.Dispersible film
US5445862Dec 22, 1994Aug 29, 1995Tokuyama CorporationPorous film and process for production thereof
US5447788May 16, 1994Sep 5, 1995Kimberly Clark CorporationPorous, nonwoven liquid-activated barrier
US5451450Jul 14, 1993Sep 19, 1995Exxon Chemical Patents Inc.Elastic articles and a process for their production
US5470811Feb 13, 1995Nov 28, 1995Exxon Chemical Patents Inc.Polymerization catalysts, their production and use
US5472775Aug 17, 1993Dec 5, 1995The Dow Chemical CompanyElastic materials and articles therefrom
US5500260Jun 17, 1994Mar 19, 1996Exxon Chemical Patents Inc.Dispersible film
US5500360Mar 14, 1994Mar 19, 1996Mycogen Plant Science, Inc.RNA transformation vector
US5525659Sep 8, 1993Jun 11, 1996The Dow Chemical CompanyBatch inclusion packages
US5549777Jun 5, 1995Aug 27, 1996The Procter & Gamble CompanyThree-dimensional, macroscopically expanded, apertured laminate webs and method for making
US5558930Jun 23, 1994Sep 24, 1996Tredegar Industries, Inc.Heat sealable, high moisture barrier film and method of making same
US5560974Jan 10, 1995Oct 1, 1996Kappler Safety Group, Inc.Breathable non-woven composite barrier fabric and fabrication process
US5565250Feb 8, 1995Oct 15, 1996Exxon Chemical Patents, Inc.Multi-layer film
US5571619May 24, 1994Nov 5, 1996Exxon Chemical Patents, Inc.Fibers and oriented films of polypropylene higher α-olefin copolymers
US5575785Jun 7, 1995Nov 19, 1996Kimberly-Clark CorporationAbsorbent article including liquid containment beams and leakage barriers
US5580910Apr 12, 1993Dec 3, 1996Kimberly-Clark CorporationSelf sealing film
US5580914Jun 7, 1995Dec 3, 1996The Dow Chemical CompanyBatch inclusion packages
US5674944Jun 7, 1995Oct 7, 1997The Dow Chemical CompanyBatch inclusion packages
US5690949Oct 19, 1995Nov 25, 1997Minnesota Mining And Manufacturing CompanyMicroporous membrane material for preventing transmission of viral pathogens
US5695868Nov 25, 1996Dec 9, 1997Kimberly-Clark Worldwide, Inc.Breathable, cloth-like film/nonwoven composite
US5695871Jun 8, 1994Dec 9, 1997The Victoria University Of ManchesterReduction of openness of material
US5738111Dec 23, 1996Apr 14, 1998Minnesota Mining And Manufacturing CompanyMethod for preventing transmission of viral pathogens
US5783270Jun 3, 1996Jul 21, 1998W. R. Grace & Co.-Conn.Packaging film, packages and methods for using them
US5814569Mar 27, 1997Sep 29, 1998Unitika Ltd.Uniaxially elastic nonwoven fabric
US5865926Feb 15, 1996Feb 2, 1999Clopay Plastic Products Company, Inc.Method of making a cloth-like microporous laminate of a nonwoven fibrous web and thermoplastic film having air and moisture vapor permeabilities with liquid-barrier properties
US5910225Oct 16, 1997Jun 8, 1999Chicopee, Inc.Film and nonwoven laminate and method
US5995187Aug 5, 1997Nov 30, 1999Hitachi, Ltd.Liquid crystal display device in-plane-switching system with counter electrode in contact with liquid crystal
USB13860003 Title not available
USRE28606Aug 31, 1973Nov 4, 1975 Filled, biaxially oriented, polymeric film
USRE28608Apr 8, 1974Nov 11, 1975 Automatic assembly machine
AU577644B2 Title not available
AU621048B2 Title not available
CA1296225CAug 21, 1987Feb 25, 1992John Anthony CookPlugged microporous film
CA1311181CMay 17, 1988Dec 8, 1992Paresh Jaswantlal ShethComposite breathable housewrap films
CA1322082CMar 7, 1988Sep 14, 1993Paresh Jaswantlal ShethBreathable films prepared from melt embossed polyolefin/filler precursor films
CA2130192CFeb 17, 1993Feb 24, 1998Aspy K. MehtaElastic articles having improved unload power and a process for their production
CA2144737CSep 13, 1993Apr 23, 2002William John Hodgson Jr.Soft films having enhanced physical properties
DE2035117A1Jul 15, 1970Jan 28, 1971 Title not available
FR2074338A5 Title not available
FR2446176A1 Title not available
GB1454218A Title not available
GB2101468B Title not available
GB2115702B Title not available
GB2137632A Title not available
GB2151538B Title not available
GB2178433B Title not available
GB2285408B Title not available
GB2290052A Title not available
JP1144431A Title not available
JP1235439A Title not available
JP1264031A Title not available
JP1266150A Title not available
JP2179543A Title not available
JP3221540B2 Title not available
JP4860774B1 Title not available
JP5130856B2 Title not available
JP5702350B2 Title not available
JP7116429B2 Title not available
JP7118431B Title not available
JP54120646U Title not available
JP54120658U Title not available
JP55110141A Title not available
JP57117038U Title not available
JP57117039U Title not available
JP58129034A Title not available
JP61284439A Title not available
JP62169642A Title not available
JP62176843A Title not available
JP62179543A Title not available
JP62282003A Title not available
Non-Patent Citations
1Van A. Wente "Superfine Thermoplastic Fibers" Industrial Engineering Chemistry, Aug. 1956, vol. 48, No. 8, pp. 1342-1346.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6414217May 3, 2000Jul 2, 2002Kimberly-Clark Worldwide, Inc.Absorbent article having a lateral breathability gradient in use
US6503236 *May 3, 2000Jan 7, 2003Kimberly-Clark Worldwide, Inc.Absorbent article having an extensible outer cover with activatable zoned breathability
US6506186May 3, 2000Jan 14, 2003Kimberly-Clark Worldwide, Inc.Absorbent article having enhanced leg curvature in use
US6552245 *May 3, 2000Apr 22, 2003Kimberly-Clark Worldwide, Inc.Absorbent article having an extensible outer cover and an extensible bodyside liner
US6569527May 21, 1999May 27, 2003Imerys Minerals, LimitedParticulate carbonates and their preparation and use in thermoplastic film compositions
US6682775May 3, 2001Jan 27, 2004Imerys Pigments, Inc.Particulate carbonates and their preparation and use in breathable film
US6706228Jun 18, 2001Mar 16, 2004Exxonmobil Chemical CompanyProcess for producing polyolefin microporous breathable film
US6840928Dec 19, 2001Jan 11, 2005Kimberly-Clark Worldwide, Inc.Stretchable absorbent article having zones of differential stretch
US6878648Nov 20, 2003Apr 12, 2005Polymer Group, Inc.Regionally imprinted nonwoven fabric
US6942711Oct 21, 2003Sep 13, 2005Polymer Group, Inc.Hydroentangled filter media with improved static decay and method
US7060746Nov 26, 2003Jun 13, 2006Imerys Pigments, Inc.Particulate carbonates and their preparation and use in breathable film
US7195685Mar 10, 2004Mar 27, 2007Polymer Group, Inc.Nonwoven fabric having improved performance
US7238313Aug 7, 2002Jul 3, 2007Polymer Group, Inc.Thermoplastic constructs with improved softness
US7320948Dec 20, 2002Jan 22, 2008Kimberly-Clark Worldwide, Inc.Extensible laminate having improved stretch properties and method for making same
US7326314Apr 11, 2003Feb 5, 2008Polymer Group, Inc.Method of making a nonwoven absorbent fabric
US7501357Jun 19, 2002Mar 10, 2009Kappler, Inc.Vapor permeable, liquid impermeable composite fabric and fabrication process
US7651653Dec 22, 2004Jan 26, 2010Kimberly-Clark Worldwide, Inc.Machine and cross-machine direction elastic materials and methods of making same
US7772137Jul 18, 2003Aug 10, 2010Clopay Plastic Products Company, Inc.Breathable materials comprising low-elongation fabrics, and methods
US7795333Apr 13, 2006Sep 14, 2010Cellresin Technologies, LlcGrafted cyclodextrin
US7932196Aug 22, 2003Apr 26, 2011Kimberly-Clark Worldwide, Inc.Microporous stretch thinned film/nonwoven laminates and limited use or disposable product applications
US8129450Jun 11, 2007Mar 6, 2012Cellresin Technologies, LlcArticles having a polymer grafted cyclodextrin
US8148466May 23, 2005Apr 3, 2012Cellresin Technologies, LlcAmphoteric grafted barrier materials
US8334343Jun 11, 2007Dec 18, 2012Cellresin Technologies, LlcGrafted cyclodextrin
US8501308Apr 13, 2006Aug 6, 2013Cellresin Technologies, LlcGrafted cyclodextrin
US8697777 *Jul 22, 2011Apr 15, 2014National Science & Technology Development AgencyMasterbatch for preparing plastic films with high ethylene permselectivity and the plastic films produced therefrom
US8865289 *Jul 25, 2011Oct 21, 2014The Glad Products CompanyIncrementally stretched films with increased tear resistance and methods for making the same
US8894901 *Oct 1, 2007Nov 25, 2014G.R. Green Building Products Inc.Method of making a sheet of building material
US9134251Sep 15, 2011Sep 15, 20153M Innovative Properties CompanyPorous chemical indicator for gaseous media
US20020165516 *Dec 19, 2001Nov 7, 2002Datta Paul JosephStretchable absorbent article having zones of differential stretch
US20030017345 *Sep 17, 2002Jan 23, 2003Tredegar Film Products CorporationTear-resistant low set elastic film and method of making
US20030049989 *Aug 7, 2002Mar 13, 2003Richard FerenczThermoplastic constructs with improved softness
US20030110721 *Jan 8, 2003Jun 19, 2003Harel Kenneth N.Method of making drywall bead with knurled paper flaps
US20030129909 *Nov 15, 2002Jul 10, 2003Polymer Group, Inc.Nonwoven barrier fabrics with enhanced barrier to weight performance
US20030180525 *Dec 30, 2002Sep 25, 2003Strack David CraigeCross-directional extendible films having high breathability and low outer dampness
US20030211801 *Jan 9, 2003Nov 13, 2003Michael PutnamHydroentangled continuous filament nonwoven fabric and the articles thereof
US20030215617 *May 15, 2002Nov 20, 2003Hussein ShehataWaterproof and breathable microporous thermoplastic laminated fabric
US20030227106 *Apr 11, 2003Dec 11, 2003Polymer Group, Inc.Nonwoven absorbent fabric
US20040023585 *Jun 19, 2002Feb 5, 2004Carroll Todd R.Vapor permeable, liquid impermeable composite fabric and fabrication process
US20040116019 *Sep 18, 2003Jun 17, 2004Jerry ZuckerNonwoven industrial fabrics with improved barrier properties
US20040121687 *Dec 20, 2002Jun 24, 2004Morman Michael TodExtensible laminate having improved stretch properties and method for making same
US20040128732 *Sep 18, 2003Jul 8, 2004Polymer Group, Inc.Medical fabrics with improved barrier performance
US20040133177 *Sep 18, 2003Jul 8, 2004Jerry ZuckerBarrier performance of absorbent article components
US20040135286 *Dec 23, 2003Jul 15, 2004Ying Sandy Chi-ChingMethod of making a heat-set necked nonwoven web
US20040142622 *Oct 21, 2003Jul 22, 2004Jerry ZuckerNonwoven barrier fabric comprising frangible fibrous component
US20040147636 *Nov 26, 2003Jul 29, 2004Imerys Pigments, Inc.Particulate carbonates and their preparation and use in breathable film
US20040152380 *Nov 20, 2003Aug 5, 2004Jennifer MayhornRegionally imprinted nonwoven fabric
US20040211163 *Oct 21, 2003Oct 28, 2004Richard FaulknerHydroentangled filter media with improved static decay and method
US20050000047 *Apr 16, 2004Jan 6, 2005Karl KellyFloor cleaning implement
US20050003035 *Apr 7, 2004Jan 6, 2005Jerry ZuckerMethod for forming polymer materials utilizing modular die units
US20050020159 *Apr 6, 2004Jan 27, 2005Jerry ZuckerHydroentangled continuous filament nonwoven fabric and the articles thereof
US20050039837 *Mar 10, 2004Feb 24, 2005Polymer Group, Inc.Nonwoven fabric having improved performance
US20050131119 *Dec 27, 2004Jun 16, 2005Wood Willard E.Enhanced lubrication in polyolefin closure with polyolefin grafted cyclodextrin
US20050133151 *Dec 22, 2003Jun 23, 2005Maldonado Pacheco Jose E.Extensible and stretch laminates and method of making same
US20060036176 *Jul 20, 2004Feb 16, 2006Angelsen Bjorn AWide aperture array design with constrained outer probe dimension
US20060183856 *Apr 13, 2006Aug 17, 2006Cellresin Technologies, LlcGrafted cyclodextrin
US20060217000 *May 16, 2006Sep 28, 2006Polymer Group, Inc.Method for forming polymer materials utilizing modular die units
US20100215946 *Oct 1, 2007Aug 26, 2010G.R. Green Building Products Inc.Method of making a sheet of building material
US20120134606 *Jan 31, 2012May 31, 2012Borchardt Michael GNon-Continuously Laminated Multi-Layered Bags With Ribbed Patterns And Methods of Forming The Same
US20130029066 *Jan 31, 2013Borchardt Michael GIncrementally Stretched Films with Increased Tear Resistance and Methods For Making The Same
US20130131232 *Jul 22, 2011May 23, 2013King Mongkut's Institute Of Technology LadkrabandMasterbatch for preparing plastic films with high ethylene permselectivity and the plastic films produced therefrom
WO2004026167A2Sep 18, 2003Apr 1, 2004Polymer Group IncImproved barrier performance of absorbent article components
WO2005077643A1 *Mar 11, 2004Aug 25, 2005Polymer Group IncApertured film with raised profile elements, method for making the same, and the products thereof
U.S. Classification264/154, 264/210.6, 264/288.8, 264/290.2
International ClassificationB29C55/18
Cooperative ClassificationB29K2023/00, B29C55/18, B29K2105/04, B29K2995/0068, B29K2105/16
European ClassificationB29C55/18
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